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US area code · Louisiana

504 area code

Where the 504 area code is, its overlay and how to dial a +1 504 number from anywhere.

CoversNew Orleans, LouisianaTime zoneCentral (CT)TypeGeographic
Quick answer

The 504 area code is in New Orleans, Louisiana, United States (Central (CT)). To call from abroad: +1 504 555-0123.

StateLouisiana
Main areaNew Orleans
Time zoneCentral (CT)
TypeGeographic
10-digit dialingRequired
In service since01-Jan-1947

The 504 area code is a geographic North American Numbering Plan (NANP) code covering New Orleans, Louisiana. It has been in service since 01-Jan-1947 and sits in the Central (CT) time zone.

How to dial a 504 number

From abroad+1 504 555-0123
Within the US / Canada1 504 555-0123
Locally (same area)504 555-0123

Cities in the 504 area code

A 504 number is usually in one of these places in Louisiana — 3 counties.

Chalmette Saint BernardHarvey JeffersonKenner JeffersonMarrero JeffersonMetairie JeffersonNew Orleans Jefferson;OrleansTerrytown

Other Louisiana area codes

225318337457985

Frequently asked questions

Where is the 504 area code?

The 504 area code is in New Orleans, Louisiana, United States (Central (CT)).

Do I have to dial 10 digits for 504?

Yes — dial the area code plus the seven-digit number.

How do I call a 504 number from another country?

Dial your exit code (or +), then 1, then 504, then the number: +1 504 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 504 number does not pinpoint a street or ZIP code.

Number holders in area code 504

Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 582 prefixes are in use in 504, shared by 42 companies. The largest holders:

CompanyPrefixesShare
Bellsouth Telecomm Inc Dba South Central Bell Tel22539%
Voicestream Gsm I, LLC8114%
New Cingular Wireless PCS, LLC488%
Cellco Partnership Dba Verizon Wireless387%
Spok, Inc.254%
Onvoy, LLC234%

Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.

Complaints about 504 numbers

Reports to the FTC, last 30 days
402
Recorded messages or robocalls
69%
Rank among area codes
#243 of 670
Most reported subjects
Other (197)
Calls pretending to be government, businesses, or family and friends (78)
Medical & prescriptions (39)

Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.

Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).

All US area codes United States +1 Map of area code 504 — cities & rate centres

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